L a
Total thickness of quantum wells
L w
Thickness of the laser wave-guiding layer
l 0
Dipole arm
|M eZ |
Module of the MZ transfer function
m
Amplitude fluctuations, charge carrier mass, mass of the electron
m RF, m (t)
RF amplitude fluctuations
m Lm (t)
Laser amplitude noise component
N(t)
Population difference between levels
N 2
Quantity of carriers on the upper energy level
N sp
Number of spontaneous photons obtained in PD
n
Refraction index
n 0
Refraction index of the medium material
P 0
Optical power
POL
Optical power of the laser
P L0
DC component of the photon flow density in the resonator
P RF
RF power of OEO
P n
Spatial component of the active medium polarization
P(z, t)
Polarization
P NL
Nonlinear pumping
p = d/dt
Laplace operator
Q RF, F
Q-factor of the RF filter
Q n
Q-factor for the n-mode
q
Carrier charge
R
Distance
R c
Controlling resistance
R d
Laser diode resistance
R(t, t + τ)
Autocorrelation function of the laser random field
R MZ (τ)
Autocorrelation function of the MZ modulator
r fi
Matrix element
S, S d
Spectrum, spectral density
S 1L
Slope of the Watt–Ampere characteristic; proportionality
coefficient defining the dependence of photon flow density (in
laser optical resonator)
S 12L (F, R)
Mutual spectral density of PSD
S L
Optical oscillation spectrum with noises
S NY
Nonlinear function of RF first harmonic of collector current of
the RF amplifier
S RFL
Spectrum of the electric signal
S RFMZ
Current spectrum at the MZ input
S ξ (f)
Spectral density of ξ(t)
S η (f)
Spectral density of η(t)
S ψL (ν)
Spectral density of the laser phase fluctuations
T 1
Lifetime of carriers on the upper excited level
T 1FOS and T 2FOS Delay time in 1 and 2 channel
List of Symbols
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